Ann Arbor officials announce temporary closure of popular Argo Cascades on Huron River

"To comply with the Federal Energy Regulatory Commission and the MDNR minimum flow requirements across Barton and Argo dams, the low flow in the river has necessitated closing Argo Cascades," Bahl wrote in the email. "Presently it is planned to stop the flow through Cascades tomorrow morning. Staff will continue to monitor river flows and the flow will be restored to the Cascades when flow in the river improves."

In addition to kayaks, the city now rents tubes that members of the public can take for leisurely trips down the river from Argo to Gallup, starting at the cascades.

The city spent $1.17 million putting in the new cascading river feature, which includes a series of drop pools separated by rocky formations. It's been so popular that the City Council recently had to approve a contract to lease 40 extra parking spaces at a nearby property.

On recent weekend afternoons, dozens of tubers and kayakers at a time could be seen making their way down the cascades.